CVE-2026-1421: A vulnerability has been found in code-projects Online Examination System 1.0

Routine

LOW 3.5DOWNGRADE

CVE-2026-1421 is a low-severity flaw (CVSS 3.5) affecting online examination system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been found in code-projects Online Examination System 1.0. Affected is an unknown function of the component Add Pages. Such manipulation leads to cross site scripting. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2026-01-26
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: fabian

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-26 06:16 UTCPublished CVE record published
2026-06-17 10:15 UTCUpdated Record last modified

fabian online examination system DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy online-examination-system || rpm -q online-examination-system || online-examination-system --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison online-examination-system sudo apt install online-examination-system=<VERSION_BEFORE_1.0> sudo apt-mark hold online-examination-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list online-examination-system sudo dnf downgrade online-examination-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add online-examination-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-1421?

online examination system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-1421 being exploited?

CVE-2026-1421 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-1421 affect?

CVE-2026-1421 affects online examination system. Severity is low (CVSS 3.5). A vulnerability has been found in code-projects Online Examination System 1.0. Affected is an unknown function of the component Add Pages. Such manipulation leads to cross site scripting. The attack can be executed remotely. The exploit has

How urgent is CVE-2026-1421?

Priority 23/100. Public exploit reference

Related CVEs

CVE-2025-11736 HIGH 7.3 DOWNGRADE A flaw has been found in itsourcecode Online Examination System 1.0
CVE-2026-2173 HIGH 7.3 DOWNGRADE A vulnerability was identified in code-projects Online Examination System 1.0
CVE-2026-1423 MEDIUM 6.3 DOWNGRADE A vulnerability was determined in code-projects Online Examination System 1.0
CVE-2026-1422 HIGH 7.3 DOWNGRADE A vulnerability was found in code-projects Online Examination System 1.0
CVE-2025-4706 HIGH 7.3 DOWNGRADE A vulnerability was found in projectworlds Online Examination System 1.0

References

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